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Finding the Fourth Proportional to 472,285.31, 651,760.29 and 257,424.98

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Solution

The fourth proportional to 472,285.31, 651,760.29 and 257,424.98 is: 355,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,285.31 : 651,760.29 = 257,424.98 : x
  2. Step 2: Convert to fraction form
    472,285.31/651,760.29 = 257,424.98/x
  3. Step 3: Cross multiply
    472,285.31x = 651,760.29 × 257,424.98
  4. Step 4: Simplify right side
    472,285.31x = 167,779,376,359.24
  5. Step 5: Solve for x
    x = 167,779,376,359.24/472,285.31
  6. Step 6: Final answer
    x = 355,250.05

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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.