Home / 288,583.23-432,881-99,042.78

Finding the Fourth Proportional to 288,583.23, 432,881 and 99,042.78

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Solution

The fourth proportional to 288,583.23, 432,881 and 99,042.78 is: 148,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,583.23 : 432,881 = 99,042.78 : x
  2. Step 2: Convert to fraction form
    288,583.23/432,881 = 99,042.78/x
  3. Step 3: Cross multiply
    288,583.23x = 432,881 × 99,042.78
  4. Step 4: Simplify right side
    288,583.23x = 42,873,737,649.18
  5. Step 5: Solve for x
    x = 42,873,737,649.18/288,583.23
  6. Step 6: Final answer
    x = 148,566.28

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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.