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Finding the Fourth Proportional to 170,655.60, 255,637.80 and 118,124.40

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Solution

The fourth proportional to 170,655.60, 255,637.80 and 118,124.40 is: 176,947.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,655.60 : 255,637.80 = 118,124.40 : x
  2. Step 2: Convert to fraction form
    170,655.60/255,637.80 = 118,124.40/x
  3. Step 3: Cross multiply
    170,655.60x = 255,637.80 × 118,124.40
  4. Step 4: Simplify right side
    170,655.60x = 30,197,061,742.32
  5. Step 5: Solve for x
    x = 30,197,061,742.32/170,655.60
  6. Step 6: Final answer
    x = 176,947.38

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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.