Home / 330,332.28-455,424.77-238,374.39

Finding the Fourth Proportional to 330,332.28, 455,424.77 and 238,374.39

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Solution

The fourth proportional to 330,332.28, 455,424.77 and 238,374.39 is: 328,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,332.28 : 455,424.77 = 238,374.39 : x
  2. Step 2: Convert to fraction form
    330,332.28/455,424.77 = 238,374.39/x
  3. Step 3: Cross multiply
    330,332.28x = 455,424.77 × 238,374.39
  4. Step 4: Simplify right side
    330,332.28x = 108,561,600,547.77
  5. Step 5: Solve for x
    x = 108,561,600,547.77/330,332.28
  6. Step 6: Final answer
    x = 328,643.63

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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.