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Finding the Fourth Proportional to 375,045.60, 517,636.71 and 284,243.19

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Solution

The fourth proportional to 375,045.60, 517,636.71 and 284,243.19 is: 392,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,045.60 : 517,636.71 = 284,243.19 : x
  2. Step 2: Convert to fraction form
    375,045.60/517,636.71 = 284,243.19/x
  3. Step 3: Cross multiply
    375,045.60x = 517,636.71 × 284,243.19
  4. Step 4: Simplify right side
    375,045.60x = 147,134,709,711.51
  5. Step 5: Solve for x
    x = 147,134,709,711.51/375,045.60
  6. Step 6: Final answer
    x = 392,311.52

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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.