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Finding the Fourth Proportional to 249,600.40, 374,400.60 and 83,388.40

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Solution

The fourth proportional to 249,600.40, 374,400.60 and 83,388.40 is: 125,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,600.40 : 374,400.60 = 83,388.40 : x
  2. Step 2: Convert to fraction form
    249,600.40/374,400.60 = 83,388.40/x
  3. Step 3: Cross multiply
    249,600.40x = 374,400.60 × 83,388.40
  4. Step 4: Simplify right side
    249,600.40x = 31,220,666,993.04
  5. Step 5: Solve for x
    x = 31,220,666,993.04/249,600.40
  6. Step 6: Final answer
    x = 125,082.60

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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.