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Finding the Fourth Proportional to 288,301.74, 432,493.88 and 88,638.89

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Solution

The fourth proportional to 288,301.74, 432,493.88 and 88,638.89 is: 132,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,301.74 : 432,493.88 = 88,638.89 : x
  2. Step 2: Convert to fraction form
    288,301.74/432,493.88 = 88,638.89/x
  3. Step 3: Cross multiply
    288,301.74x = 432,493.88 × 88,638.89
  4. Step 4: Simplify right side
    288,301.74x = 38,335,774,849.33
  5. Step 5: Solve for x
    x = 38,335,774,849.33/288,301.74
  6. Step 6: Final answer
    x = 132,971.02

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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.