Home / 228,513.12-342,323.28-157,423.20

Finding the Fourth Proportional to 228,513.12, 342,323.28 and 157,423.20

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Solution

The fourth proportional to 228,513.12, 342,323.28 and 157,423.20 is: 235,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,513.12 : 342,323.28 = 157,423.20 : x
  2. Step 2: Convert to fraction form
    228,513.12/342,323.28 = 157,423.20/x
  3. Step 3: Cross multiply
    228,513.12x = 342,323.28 × 157,423.20
  4. Step 4: Simplify right side
    228,513.12x = 53,889,626,172.10
  5. Step 5: Solve for x
    x = 53,889,626,172.10/228,513.12
  6. Step 6: Final answer
    x = 235,827.27

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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.