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Finding the Fourth Proportional to 288,312.60, 432,467.88 and 77,950.56

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Solution

The fourth proportional to 288,312.60, 432,467.88 and 77,950.56 is: 116,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,312.60 : 432,467.88 = 77,950.56 : x
  2. Step 2: Convert to fraction form
    288,312.60/432,467.88 = 77,950.56/x
  3. Step 3: Cross multiply
    288,312.60x = 432,467.88 × 77,950.56
  4. Step 4: Simplify right side
    288,312.60x = 33,711,113,428.01
  5. Step 5: Solve for x
    x = 33,711,113,428.01/288,312.60
  6. Step 6: Final answer
    x = 116,925.56

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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.