Home / 307,386.03-424,191.89-171,420.13

Finding the Fourth Proportional to 307,386.03, 424,191.89 and 171,420.13

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Solution

The fourth proportional to 307,386.03, 424,191.89 and 171,420.13 is: 236,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,386.03 : 424,191.89 = 171,420.13 : x
  2. Step 2: Convert to fraction form
    307,386.03/424,191.89 = 171,420.13/x
  3. Step 3: Cross multiply
    307,386.03x = 424,191.89 × 171,420.13
  4. Step 4: Simplify right side
    307,386.03x = 72,715,030,208.95
  5. Step 5: Solve for x
    x = 72,715,030,208.95/307,386.03
  6. Step 6: Final answer
    x = 236,559.32

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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.