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Finding the Fourth Proportional to 166,486.80, 249,730.20 and 55,678.80

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Solution

The fourth proportional to 166,486.80, 249,730.20 and 55,678.80 is: 83,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,486.80 : 249,730.20 = 55,678.80 : x
  2. Step 2: Convert to fraction form
    166,486.80/249,730.20 = 55,678.80/x
  3. Step 3: Cross multiply
    166,486.80x = 249,730.20 × 55,678.80
  4. Step 4: Simplify right side
    166,486.80x = 13,904,677,859.76
  5. Step 5: Solve for x
    x = 13,904,677,859.76/166,486.80
  6. Step 6: Final answer
    x = 83,518.20

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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.