Home / 291,430.32-437,146.26-81,068.28

Finding the Fourth Proportional to 291,430.32, 437,146.26 and 81,068.28

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Solution

The fourth proportional to 291,430.32, 437,146.26 and 81,068.28 is: 121,602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,430.32 : 437,146.26 = 81,068.28 : x
  2. Step 2: Convert to fraction form
    291,430.32/437,146.26 = 81,068.28/x
  3. Step 3: Cross multiply
    291,430.32x = 437,146.26 × 81,068.28
  4. Step 4: Simplify right side
    291,430.32x = 35,438,695,406.63
  5. Step 5: Solve for x
    x = 35,438,695,406.63/291,430.32
  6. Step 6: Final answer
    x = 121,602.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.