Home / 285,002.15-393,275.45-157,675.01

Finding the Fourth Proportional to 285,002.15, 393,275.45 and 157,675.01

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Solution

The fourth proportional to 285,002.15, 393,275.45 and 157,675.01 is: 217,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,002.15 : 393,275.45 = 157,675.01 : x
  2. Step 2: Convert to fraction form
    285,002.15/393,275.45 = 157,675.01/x
  3. Step 3: Cross multiply
    285,002.15x = 393,275.45 × 157,675.01
  4. Step 4: Simplify right side
    285,002.15x = 62,009,708,939.31
  5. Step 5: Solve for x
    x = 62,009,708,939.31/285,002.15
  6. Step 6: Final answer
    x = 217,576.29

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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.