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Finding the Fourth Proportional to 370,165.15, 510,563.68 and 255,487.15

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Solution

The fourth proportional to 370,165.15, 510,563.68 and 255,487.15 is: 352,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,165.15 : 510,563.68 = 255,487.15 : x
  2. Step 2: Convert to fraction form
    370,165.15/510,563.68 = 255,487.15/x
  3. Step 3: Cross multiply
    370,165.15x = 510,563.68 × 255,487.15
  4. Step 4: Simplify right side
    370,165.15x = 130,442,459,496.71
  5. Step 5: Solve for x
    x = 130,442,459,496.71/370,165.15
  6. Step 6: Final answer
    x = 352,389.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.