Home / 287,019.04-430,528.92-137,224.12

Finding the Fourth Proportional to 287,019.04, 430,528.92 and 137,224.12

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Solution

The fourth proportional to 287,019.04, 430,528.92 and 137,224.12 is: 205,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,019.04 : 430,528.92 = 137,224.12 : x
  2. Step 2: Convert to fraction form
    287,019.04/430,528.92 = 137,224.12/x
  3. Step 3: Cross multiply
    287,019.04x = 430,528.92 × 137,224.12
  4. Step 4: Simplify right side
    287,019.04x = 59,078,952,181.55
  5. Step 5: Solve for x
    x = 59,078,952,181.55/287,019.04
  6. Step 6: Final answer
    x = 205,836.35

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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.