Home / 287,460.12-431,209.68-97,842.36

Finding the Fourth Proportional to 287,460.12, 431,209.68 and 97,842.36

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Solution

The fourth proportional to 287,460.12, 431,209.68 and 97,842.36 is: 146,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,460.12 : 431,209.68 = 97,842.36 : x
  2. Step 2: Convert to fraction form
    287,460.12/431,209.68 = 97,842.36/x
  3. Step 3: Cross multiply
    287,460.12x = 431,209.68 × 97,842.36
  4. Step 4: Simplify right side
    287,460.12x = 42,190,572,746.04
  5. Step 5: Solve for x
    x = 42,190,572,746.04/287,460.12
  6. Step 6: Final answer
    x = 146,770.18

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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.