Home / 228,708.12-315,379.26-180,885.72

Finding the Fourth Proportional to 228,708.12, 315,379.26 and 180,885.72

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Solution

The fourth proportional to 228,708.12, 315,379.26 and 180,885.72 is: 249,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,708.12 : 315,379.26 = 180,885.72 : x
  2. Step 2: Convert to fraction form
    228,708.12/315,379.26 = 180,885.72/x
  3. Step 3: Cross multiply
    228,708.12x = 315,379.26 × 180,885.72
  4. Step 4: Simplify right side
    228,708.12x = 57,047,604,518.17
  5. Step 5: Solve for x
    x = 57,047,604,518.17/228,708.12
  6. Step 6: Final answer
    x = 249,434.10

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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.