Home / 203,048.28-280,203.30-112,402.35

Finding the Fourth Proportional to 203,048.28, 280,203.30 and 112,402.35

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Solution

The fourth proportional to 203,048.28, 280,203.30 and 112,402.35 is: 155,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,048.28 : 280,203.30 = 112,402.35 : x
  2. Step 2: Convert to fraction form
    203,048.28/280,203.30 = 112,402.35/x
  3. Step 3: Cross multiply
    203,048.28x = 280,203.30 × 112,402.35
  4. Step 4: Simplify right side
    203,048.28x = 31,495,509,397.76
  5. Step 5: Solve for x
    x = 31,495,509,397.76/203,048.28
  6. Step 6: Final answer
    x = 155,113.40

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1.5x scale

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.