Home / 291,309.24-402,005.70-163,985.16

Finding the Fourth Proportional to 291,309.24, 402,005.70 and 163,985.16

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Solution

The fourth proportional to 291,309.24, 402,005.70 and 163,985.16 is: 226,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,309.24 : 402,005.70 = 163,985.16 : x
  2. Step 2: Convert to fraction form
    291,309.24/402,005.70 = 163,985.16/x
  3. Step 3: Cross multiply
    291,309.24x = 402,005.70 × 163,985.16
  4. Step 4: Simplify right side
    291,309.24x = 65,922,969,035.41
  5. Step 5: Solve for x
    x = 65,922,969,035.41/291,309.24
  6. Step 6: Final answer
    x = 226,298.93

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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.