Home / 218,389.38-301,376.40-122,897.70

Finding the Fourth Proportional to 218,389.38, 301,376.40 and 122,897.70

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Solution

The fourth proportional to 218,389.38, 301,376.40 and 122,897.70 is: 169,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,389.38 : 301,376.40 = 122,897.70 : x
  2. Step 2: Convert to fraction form
    218,389.38/301,376.40 = 122,897.70/x
  3. Step 3: Cross multiply
    218,389.38x = 301,376.40 × 122,897.70
  4. Step 4: Simplify right side
    218,389.38x = 37,038,466,394.28
  5. Step 5: Solve for x
    x = 37,038,466,394.28/218,389.38
  6. Step 6: Final answer
    x = 169,598.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.