Home / 421,317.50-581,343.41-249,242.72

Finding the Fourth Proportional to 421,317.50, 581,343.41 and 249,242.72

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Solution

The fourth proportional to 421,317.50, 581,343.41 and 249,242.72 is: 343,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,317.50 : 581,343.41 = 249,242.72 : x
  2. Step 2: Convert to fraction form
    421,317.50/581,343.41 = 249,242.72/x
  3. Step 3: Cross multiply
    421,317.50x = 581,343.41 × 249,242.72
  4. Step 4: Simplify right side
    421,317.50x = 144,895,612,762.48
  5. Step 5: Solve for x
    x = 144,895,612,762.48/421,317.50
  6. Step 6: Final answer
    x = 343,910.74

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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.