Home / 345,079.80-517,814.10-134,690.40

Finding the Fourth Proportional to 345,079.80, 517,814.10 and 134,690.40

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Solution

The fourth proportional to 345,079.80, 517,814.10 and 134,690.40 is: 202,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,079.80 : 517,814.10 = 134,690.40 : x
  2. Step 2: Convert to fraction form
    345,079.80/517,814.10 = 134,690.40/x
  3. Step 3: Cross multiply
    345,079.80x = 517,814.10 × 134,690.40
  4. Step 4: Simplify right side
    345,079.80x = 69,744,588,254.64
  5. Step 5: Solve for x
    x = 69,744,588,254.64/345,079.80
  6. Step 6: Final answer
    x = 202,111.48

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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.