Home / 389,228.40-583,842.60-249,145.20

Finding the Fourth Proportional to 389,228.40, 583,842.60 and 249,145.20

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Solution

The fourth proportional to 389,228.40, 583,842.60 and 249,145.20 is: 373,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,228.40 : 583,842.60 = 249,145.20 : x
  2. Step 2: Convert to fraction form
    389,228.40/583,842.60 = 249,145.20/x
  3. Step 3: Cross multiply
    389,228.40x = 583,842.60 × 249,145.20
  4. Step 4: Simplify right side
    389,228.40x = 145,461,581,345.52
  5. Step 5: Solve for x
    x = 145,461,581,345.52/389,228.40
  6. Step 6: Final answer
    x = 373,717.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.