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Finding the Fourth Proportional to 249,638.60, 374,457.90 and 155,160.20

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Solution

The fourth proportional to 249,638.60, 374,457.90 and 155,160.20 is: 232,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,638.60 : 374,457.90 = 155,160.20 : x
  2. Step 2: Convert to fraction form
    249,638.60/374,457.90 = 155,160.20/x
  3. Step 3: Cross multiply
    249,638.60x = 374,457.90 × 155,160.20
  4. Step 4: Simplify right side
    249,638.60x = 58,100,962,655.58
  5. Step 5: Solve for x
    x = 58,100,962,655.58/249,638.60
  6. Step 6: Final answer
    x = 232,740.30

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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.