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Finding the Fourth Proportional to 345,482.01, 518,373.61 and 121,003.47

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Solution

The fourth proportional to 345,482.01, 518,373.61 and 121,003.47 is: 181,557.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,482.01 : 518,373.61 = 121,003.47 : x
  2. Step 2: Convert to fraction form
    345,482.01/518,373.61 = 121,003.47/x
  3. Step 3: Cross multiply
    345,482.01x = 518,373.61 × 121,003.47
  4. Step 4: Simplify right side
    345,482.01x = 62,725,005,263.92
  5. Step 5: Solve for x
    x = 62,725,005,263.92/345,482.01
  6. Step 6: Final answer
    x = 181,557.95

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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.