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Finding the Fourth Proportional to 369,513.20, 553,492.20 and 307,305.20

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Solution

The fourth proportional to 369,513.20, 553,492.20 and 307,305.20 is: 460,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,513.20 : 553,492.20 = 307,305.20 : x
  2. Step 2: Convert to fraction form
    369,513.20/553,492.20 = 307,305.20/x
  3. Step 3: Cross multiply
    369,513.20x = 553,492.20 × 307,305.20
  4. Step 4: Simplify right side
    369,513.20x = 170,091,031,219.44
  5. Step 5: Solve for x
    x = 170,091,031,219.44/369,513.20
  6. Step 6: Final answer
    x = 460,311.11

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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.