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Finding the Fourth Proportional to 580,053.30, 870,121.40 and 242,754.32

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Solution

The fourth proportional to 580,053.30, 870,121.40 and 242,754.32 is: 364,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,053.30 : 870,121.40 = 242,754.32 : x
  2. Step 2: Convert to fraction form
    580,053.30/870,121.40 = 242,754.32/x
  3. Step 3: Cross multiply
    580,053.30x = 870,121.40 × 242,754.32
  4. Step 4: Simplify right side
    580,053.30x = 211,225,723,210.07
  5. Step 5: Solve for x
    x = 211,225,723,210.07/580,053.30
  6. Step 6: Final answer
    x = 364,148.82

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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.