Home / 345,158.48-517,803-134,783.12

Finding the Fourth Proportional to 345,158.48, 517,803 and 134,783.12

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Solution

The fourth proportional to 345,158.48, 517,803 and 134,783.12 is: 202,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,158.48 : 517,803 = 134,783.12 : x
  2. Step 2: Convert to fraction form
    345,158.48/517,803 = 134,783.12/x
  3. Step 3: Cross multiply
    345,158.48x = 517,803 × 134,783.12
  4. Step 4: Simplify right side
    345,158.48x = 69,791,103,885.36
  5. Step 5: Solve for x
    x = 69,791,103,885.36/345,158.48
  6. Step 6: Final answer
    x = 202,200.17

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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.