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Finding the Fourth Proportional to 236,430.60, 354,645.90 and 147,784.20

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Solution

The fourth proportional to 236,430.60, 354,645.90 and 147,784.20 is: 221,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,430.60 : 354,645.90 = 147,784.20 : x
  2. Step 2: Convert to fraction form
    236,430.60/354,645.90 = 147,784.20/x
  3. Step 3: Cross multiply
    236,430.60x = 354,645.90 × 147,784.20
  4. Step 4: Simplify right side
    236,430.60x = 52,411,060,614.78
  5. Step 5: Solve for x
    x = 52,411,060,614.78/236,430.60
  6. Step 6: Final answer
    x = 221,676.30

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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.