Home / 309,336.86-426,920.28-173,407.52

Finding the Fourth Proportional to 309,336.86, 426,920.28 and 173,407.52

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Solution

The fourth proportional to 309,336.86, 426,920.28 and 173,407.52 is: 239,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,336.86 : 426,920.28 = 173,407.52 : x
  2. Step 2: Convert to fraction form
    309,336.86/426,920.28 = 173,407.52/x
  3. Step 3: Cross multiply
    309,336.86x = 426,920.28 × 173,407.52
  4. Step 4: Simplify right side
    309,336.86x = 74,031,186,992.51
  5. Step 5: Solve for x
    x = 74,031,186,992.51/309,336.86
  6. Step 6: Final answer
    x = 239,322.23

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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.