Home / 423,407.48-634,977.43-139,051.18

Finding the Fourth Proportional to 423,407.48, 634,977.43 and 139,051.18

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Solution

The fourth proportional to 423,407.48, 634,977.43 and 139,051.18 is: 208,532.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,407.48 : 634,977.43 = 139,051.18 : x
  2. Step 2: Convert to fraction form
    423,407.48/634,977.43 = 139,051.18/x
  3. Step 3: Cross multiply
    423,407.48x = 634,977.43 × 139,051.18
  4. Step 4: Simplify right side
    423,407.48x = 88,294,359,327.42
  5. Step 5: Solve for x
    x = 88,294,359,327.42/423,407.48
  6. Step 6: Final answer
    x = 208,532.83

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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.