Home / 212,123.28-317,492.61-155,948.52

Finding the Fourth Proportional to 212,123.28, 317,492.61 and 155,948.52

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Solution

The fourth proportional to 212,123.28, 317,492.61 and 155,948.52 is: 233,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,123.28 : 317,492.61 = 155,948.52 : x
  2. Step 2: Convert to fraction form
    212,123.28/317,492.61 = 155,948.52/x
  3. Step 3: Cross multiply
    212,123.28x = 317,492.61 × 155,948.52
  4. Step 4: Simplify right side
    212,123.28x = 49,512,502,640.44
  5. Step 5: Solve for x
    x = 49,512,502,640.44/212,123.28
  6. Step 6: Final answer
    x = 233,413.81

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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.