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Finding the Fourth Proportional to 249,663.80, 374,495.70 and 144,428.60

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Solution

The fourth proportional to 249,663.80, 374,495.70 and 144,428.60 is: 216,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,663.80 : 374,495.70 = 144,428.60 : x
  2. Step 2: Convert to fraction form
    249,663.80/374,495.70 = 144,428.60/x
  3. Step 3: Cross multiply
    249,663.80x = 374,495.70 × 144,428.60
  4. Step 4: Simplify right side
    249,663.80x = 54,087,889,657.02
  5. Step 5: Solve for x
    x = 54,087,889,657.02/249,663.80
  6. Step 6: Final answer
    x = 216,642.90

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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.