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Finding the Fourth Proportional to 249,771.60, 374,657.40 and 165,790.80

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Solution

The fourth proportional to 249,771.60, 374,657.40 and 165,790.80 is: 248,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,771.60 : 374,657.40 = 165,790.80 : x
  2. Step 2: Convert to fraction form
    249,771.60/374,657.40 = 165,790.80/x
  3. Step 3: Cross multiply
    249,771.60x = 374,657.40 × 165,790.80
  4. Step 4: Simplify right side
    249,771.60x = 62,114,750,071.92
  5. Step 5: Solve for x
    x = 62,114,750,071.92/249,771.60
  6. Step 6: Final answer
    x = 248,686.20

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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.