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Finding the Fourth Proportional to 288,544.08, 432,775.74 and 99,001.32

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Solution

The fourth proportional to 288,544.08, 432,775.74 and 99,001.32 is: 148,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,544.08 : 432,775.74 = 99,001.32 : x
  2. Step 2: Convert to fraction form
    288,544.08/432,775.74 = 99,001.32/x
  3. Step 3: Cross multiply
    288,544.08x = 432,775.74 × 99,001.32
  4. Step 4: Simplify right side
    288,544.08x = 42,845,369,523.98
  5. Step 5: Solve for x
    x = 42,845,369,523.98/288,544.08
  6. Step 6: Final answer
    x = 148,488.13

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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.