Home / 228,307.46-315,064.67-126,337.21

Finding the Fourth Proportional to 228,307.46, 315,064.67 and 126,337.21

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Solution

The fourth proportional to 228,307.46, 315,064.67 and 126,337.21 is: 174,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,307.46 : 315,064.67 = 126,337.21 : x
  2. Step 2: Convert to fraction form
    228,307.46/315,064.67 = 126,337.21/x
  3. Step 3: Cross multiply
    228,307.46x = 315,064.67 × 126,337.21
  4. Step 4: Simplify right side
    228,307.46x = 39,804,389,958.02
  5. Step 5: Solve for x
    x = 39,804,389,958.02/228,307.46
  6. Step 6: Final answer
    x = 174,345.56

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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.