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Finding the Fourth Proportional to 249,543.80, 374,315.70 and 91,739.60

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Solution

The fourth proportional to 249,543.80, 374,315.70 and 91,739.60 is: 137,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,543.80 : 374,315.70 = 91,739.60 : x
  2. Step 2: Convert to fraction form
    249,543.80/374,315.70 = 91,739.60/x
  3. Step 3: Cross multiply
    249,543.80x = 374,315.70 × 91,739.60
  4. Step 4: Simplify right side
    249,543.80x = 34,339,572,591.72
  5. Step 5: Solve for x
    x = 34,339,572,591.72/249,543.80
  6. Step 6: Final answer
    x = 137,609.40

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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.