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Finding the Fourth Proportional to 291,335.41, 402,053.79 and 160,518.45

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Solution

The fourth proportional to 291,335.41, 402,053.79 and 160,518.45 is: 221,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,335.41 : 402,053.79 = 160,518.45 : x
  2. Step 2: Convert to fraction form
    291,335.41/402,053.79 = 160,518.45/x
  3. Step 3: Cross multiply
    291,335.41x = 402,053.79 × 160,518.45
  4. Step 4: Simplify right side
    291,335.41x = 64,537,051,187.43
  5. Step 5: Solve for x
    x = 64,537,051,187.43/291,335.41
  6. Step 6: Final answer
    x = 221,521.48

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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.