Home / 285,281.04-427,688.28-107,686.92

Finding the Fourth Proportional to 285,281.04, 427,688.28 and 107,686.92

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Solution

The fourth proportional to 285,281.04, 427,688.28 and 107,686.92 is: 161,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,281.04 : 427,688.28 = 107,686.92 : x
  2. Step 2: Convert to fraction form
    285,281.04/427,688.28 = 107,686.92/x
  3. Step 3: Cross multiply
    285,281.04x = 427,688.28 × 107,686.92
  4. Step 4: Simplify right side
    285,281.04x = 46,056,433,593.30
  5. Step 5: Solve for x
    x = 46,056,433,593.30/285,281.04
  6. Step 6: Final answer
    x = 161,442.32

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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.