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Finding the Fourth Proportional to 287,248.10, 430,872.15 and 162,832.10

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Solution

The fourth proportional to 287,248.10, 430,872.15 and 162,832.10 is: 244,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,248.10 : 430,872.15 = 162,832.10 : x
  2. Step 2: Convert to fraction form
    287,248.10/430,872.15 = 162,832.10/x
  3. Step 3: Cross multiply
    287,248.10x = 430,872.15 × 162,832.10
  4. Step 4: Simplify right side
    287,248.10x = 70,159,817,016.02
  5. Step 5: Solve for x
    x = 70,159,817,016.02/287,248.10
  6. Step 6: Final answer
    x = 244,248.15

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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.