Home / 212,948.60-319,307.70-88,302.20

Finding the Fourth Proportional to 212,948.60, 319,307.70 and 88,302.20

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Solution

The fourth proportional to 212,948.60, 319,307.70 and 88,302.20 is: 132,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,948.60 : 319,307.70 = 88,302.20 : x
  2. Step 2: Convert to fraction form
    212,948.60/319,307.70 = 88,302.20/x
  3. Step 3: Cross multiply
    212,948.60x = 319,307.70 × 88,302.20
  4. Step 4: Simplify right side
    212,948.60x = 28,195,572,386.94
  5. Step 5: Solve for x
    x = 28,195,572,386.94/212,948.60
  6. Step 6: Final answer
    x = 132,405.53

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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.