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Finding the Fourth Proportional to 448,411.29, 672,619.36 and 132,870.93

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Solution

The fourth proportional to 448,411.29, 672,619.36 and 132,870.93 is: 199,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,411.29 : 672,619.36 = 132,870.93 : x
  2. Step 2: Convert to fraction form
    448,411.29/672,619.36 = 132,870.93/x
  3. Step 3: Cross multiply
    448,411.29x = 672,619.36 × 132,870.93
  4. Step 4: Simplify right side
    448,411.29x = 89,371,559,899.20
  5. Step 5: Solve for x
    x = 89,371,559,899.20/448,411.29
  6. Step 6: Final answer
    x = 199,307.11

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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.