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Finding the Fourth Proportional to 212,017.64, 317,948.70 and 62,219.48

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Solution

The fourth proportional to 212,017.64, 317,948.70 and 62,219.48 is: 93,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,017.64 : 317,948.70 = 62,219.48 : x
  2. Step 2: Convert to fraction form
    212,017.64/317,948.70 = 62,219.48/x
  3. Step 3: Cross multiply
    212,017.64x = 317,948.70 × 62,219.48
  4. Step 4: Simplify right side
    212,017.64x = 19,782,602,780.68
  5. Step 5: Solve for x
    x = 19,782,602,780.68/212,017.64
  6. Step 6: Final answer
    x = 93,306.40

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1.5x scale

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.