Home / 346,318.17-519,529.20-121,639

Finding the Fourth Proportional to 346,318.17, 519,529.20 and 121,639

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Solution

The fourth proportional to 346,318.17, 519,529.20 and 121,639 is: 182,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,318.17 : 519,529.20 = 121,639 : x
  2. Step 2: Convert to fraction form
    346,318.17/519,529.20 = 121,639/x
  3. Step 3: Cross multiply
    346,318.17x = 519,529.20 × 121,639
  4. Step 4: Simplify right side
    346,318.17x = 63,195,012,358.80
  5. Step 5: Solve for x
    x = 63,195,012,358.80/346,318.17
  6. Step 6: Final answer
    x = 182,476.74

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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.