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Finding the Fourth Proportional to 249,679.80, 374,519.70 and 144,444.60

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Solution

The fourth proportional to 249,679.80, 374,519.70 and 144,444.60 is: 216,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,679.80 : 374,519.70 = 144,444.60 : x
  2. Step 2: Convert to fraction form
    249,679.80/374,519.70 = 144,444.60/x
  3. Step 3: Cross multiply
    249,679.80x = 374,519.70 × 144,444.60
  4. Step 4: Simplify right side
    249,679.80x = 54,097,348,258.62
  5. Step 5: Solve for x
    x = 54,097,348,258.62/249,679.80
  6. Step 6: Final answer
    x = 216,666.90

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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.