Home / 421,412.12-581,501.10-249,335.36

Finding the Fourth Proportional to 421,412.12, 581,501.10 and 249,335.36

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Solution

The fourth proportional to 421,412.12, 581,501.10 and 249,335.36 is: 344,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,412.12 : 581,501.10 = 249,335.36 : x
  2. Step 2: Convert to fraction form
    421,412.12/581,501.10 = 249,335.36/x
  3. Step 3: Cross multiply
    421,412.12x = 581,501.10 × 249,335.36
  4. Step 4: Simplify right side
    421,412.12x = 144,988,786,108.90
  5. Step 5: Solve for x
    x = 144,988,786,108.90/421,412.12
  6. Step 6: Final answer
    x = 344,054.62

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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.