Home / 288,616.06-432,988.00-99,072.18

Finding the Fourth Proportional to 288,616.06, 432,988.00 and 99,072.18

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Solution

The fourth proportional to 288,616.06, 432,988.00 and 99,072.18 is: 148,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,616.06 : 432,988.00 = 99,072.18 : x
  2. Step 2: Convert to fraction form
    288,616.06/432,988.00 = 99,072.18/x
  3. Step 3: Cross multiply
    288,616.06x = 432,988.00 × 99,072.18
  4. Step 4: Simplify right side
    288,616.06x = 42,897,064,826.16
  5. Step 5: Solve for x
    x = 42,897,064,826.16/288,616.06
  6. Step 6: Final answer
    x = 148,630.21

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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.