Home / 288,117.60-432,176.40-228,631.20

Finding the Fourth Proportional to 288,117.60, 432,176.40 and 228,631.20

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Solution

The fourth proportional to 288,117.60, 432,176.40 and 228,631.20 is: 342,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,117.60 : 432,176.40 = 228,631.20 : x
  2. Step 2: Convert to fraction form
    288,117.60/432,176.40 = 228,631.20/x
  3. Step 3: Cross multiply
    288,117.60x = 432,176.40 × 228,631.20
  4. Step 4: Simplify right side
    288,117.60x = 98,809,008,943.68
  5. Step 5: Solve for x
    x = 98,809,008,943.68/288,117.60
  6. Step 6: Final answer
    x = 342,946.80

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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.