Home / 345,115.04-517,236.37-155,373.35

Finding the Fourth Proportional to 345,115.04, 517,236.37 and 155,373.35

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Solution

The fourth proportional to 345,115.04, 517,236.37 and 155,373.35 is: 232,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,115.04 : 517,236.37 = 155,373.35 : x
  2. Step 2: Convert to fraction form
    345,115.04/517,236.37 = 155,373.35/x
  3. Step 3: Cross multiply
    345,115.04x = 517,236.37 × 155,373.35
  4. Step 4: Simplify right side
    345,115.04x = 80,364,744,574.12
  5. Step 5: Solve for x
    x = 80,364,744,574.12/345,115.04
  6. Step 6: Final answer
    x = 232,863.64

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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.