Home / 307,400.16-424,148.06-186,605.04

Finding the Fourth Proportional to 307,400.16, 424,148.06 and 186,605.04

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Solution

The fourth proportional to 307,400.16, 424,148.06 and 186,605.04 is: 257,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,400.16 : 424,148.06 = 186,605.04 : x
  2. Step 2: Convert to fraction form
    307,400.16/424,148.06 = 186,605.04/x
  3. Step 3: Cross multiply
    307,400.16x = 424,148.06 × 186,605.04
  4. Step 4: Simplify right side
    307,400.16x = 79,148,165,702.22
  5. Step 5: Solve for x
    x = 79,148,165,702.22/307,400.16
  6. Step 6: Final answer
    x = 257,476.01

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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.