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Finding the Fourth Proportional to 368,896.20, 553,344.30 and 302,411.40

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Solution

The fourth proportional to 368,896.20, 553,344.30 and 302,411.40 is: 453,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,896.20 : 553,344.30 = 302,411.40 : x
  2. Step 2: Convert to fraction form
    368,896.20/553,344.30 = 302,411.40/x
  3. Step 3: Cross multiply
    368,896.20x = 553,344.30 × 302,411.40
  4. Step 4: Simplify right side
    368,896.20x = 167,337,624,445.02
  5. Step 5: Solve for x
    x = 167,337,624,445.02/368,896.20
  6. Step 6: Final answer
    x = 453,617.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.