Home / 228,307.10-315,042.35-154,569.53

Finding the Fourth Proportional to 228,307.10, 315,042.35 and 154,569.53

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Solution

The fourth proportional to 228,307.10, 315,042.35 and 154,569.53 is: 213,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,307.10 : 315,042.35 = 154,569.53 : x
  2. Step 2: Convert to fraction form
    228,307.10/315,042.35 = 154,569.53/x
  3. Step 3: Cross multiply
    228,307.10x = 315,042.35 × 154,569.53
  4. Step 4: Simplify right side
    228,307.10x = 48,695,947,984.35
  5. Step 5: Solve for x
    x = 48,695,947,984.35/228,307.10
  6. Step 6: Final answer
    x = 213,291.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.