Home / 228,710.12-315,382.02-180,887.72

Finding the Fourth Proportional to 228,710.12, 315,382.02 and 180,887.72

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Solution

The fourth proportional to 228,710.12, 315,382.02 and 180,887.72 is: 249,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,710.12 : 315,382.02 = 180,887.72 : x
  2. Step 2: Convert to fraction form
    228,710.12/315,382.02 = 180,887.72/x
  3. Step 3: Cross multiply
    228,710.12x = 315,382.02 × 180,887.72
  4. Step 4: Simplify right side
    228,710.12x = 57,048,734,526.79
  5. Step 5: Solve for x
    x = 57,048,734,526.79/228,710.12
  6. Step 6: Final answer
    x = 249,436.86

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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.