Home / 287,683.20-397,002.96-160,355.88

Finding the Fourth Proportional to 287,683.20, 397,002.96 and 160,355.88

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Solution

The fourth proportional to 287,683.20, 397,002.96 and 160,355.88 is: 221,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,683.20 : 397,002.96 = 160,355.88 : x
  2. Step 2: Convert to fraction form
    287,683.20/397,002.96 = 160,355.88/x
  3. Step 3: Cross multiply
    287,683.20x = 397,002.96 × 160,355.88
  4. Step 4: Simplify right side
    287,683.20x = 63,661,759,013.40
  5. Step 5: Solve for x
    x = 63,661,759,013.40/287,683.20
  6. Step 6: Final answer
    x = 221,291.19

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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.