Home / 345,019.16-517,353.72-157,870.28

Finding the Fourth Proportional to 345,019.16, 517,353.72 and 157,870.28

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Solution

The fourth proportional to 345,019.16, 517,353.72 and 157,870.28 is: 236,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,019.16 : 517,353.72 = 157,870.28 : x
  2. Step 2: Convert to fraction form
    345,019.16/517,353.72 = 157,870.28/x
  3. Step 3: Cross multiply
    345,019.16x = 517,353.72 × 157,870.28
  4. Step 4: Simplify right side
    345,019.16x = 81,674,776,635.44
  5. Step 5: Solve for x
    x = 81,674,776,635.44/345,019.16
  6. Step 6: Final answer
    x = 236,725.34

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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.