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Finding the Fourth Proportional to 612,228.80, 918,102.90 and 232,948.10

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Solution

The fourth proportional to 612,228.80, 918,102.90 and 232,948.10 is: 349,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,228.80 : 918,102.90 = 232,948.10 : x
  2. Step 2: Convert to fraction form
    612,228.80/918,102.90 = 232,948.10/x
  3. Step 3: Cross multiply
    612,228.80x = 918,102.90 × 232,948.10
  4. Step 4: Simplify right side
    612,228.80x = 213,870,326,159.49
  5. Step 5: Solve for x
    x = 213,870,326,159.49/612,228.80
  6. Step 6: Final answer
    x = 349,330.72

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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.