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Finding the Fourth Proportional to 249,619.60, 374,429.40 and 240,288.40

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Solution

The fourth proportional to 249,619.60, 374,429.40 and 240,288.40 is: 360,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,619.60 : 374,429.40 = 240,288.40 : x
  2. Step 2: Convert to fraction form
    249,619.60/374,429.40 = 240,288.40/x
  3. Step 3: Cross multiply
    249,619.60x = 374,429.40 × 240,288.40
  4. Step 4: Simplify right side
    249,619.60x = 89,971,041,438.96
  5. Step 5: Solve for x
    x = 89,971,041,438.96/249,619.60
  6. Step 6: Final answer
    x = 360,432.60

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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.