Home / 287,025.80-430,344.30-152,112.20

Finding the Fourth Proportional to 287,025.80, 430,344.30 and 152,112.20

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Solution

The fourth proportional to 287,025.80, 430,344.30 and 152,112.20 is: 228,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,025.80 : 430,344.30 = 152,112.20 : x
  2. Step 2: Convert to fraction form
    287,025.80/430,344.30 = 152,112.20/x
  3. Step 3: Cross multiply
    287,025.80x = 430,344.30 × 152,112.20
  4. Step 4: Simplify right side
    287,025.80x = 65,460,618,230.46
  5. Step 5: Solve for x
    x = 65,460,618,230.46/287,025.80
  6. Step 6: Final answer
    x = 228,065.28

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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.