Home / 456,312.60-684,515.85-172,242.42

Finding the Fourth Proportional to 456,312.60, 684,515.85 and 172,242.42

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Solution

The fourth proportional to 456,312.60, 684,515.85 and 172,242.42 is: 258,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,312.60 : 684,515.85 = 172,242.42 : x
  2. Step 2: Convert to fraction form
    456,312.60/684,515.85 = 172,242.42/x
  3. Step 3: Cross multiply
    456,312.60x = 684,515.85 × 172,242.42
  4. Step 4: Simplify right side
    456,312.60x = 117,902,666,532.36
  5. Step 5: Solve for x
    x = 117,902,666,532.36/456,312.60
  6. Step 6: Final answer
    x = 258,381.35

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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.