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Finding the Fourth Proportional to 264,015.04, 395,990.40 and 77,026.72

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Solution

The fourth proportional to 264,015.04, 395,990.40 and 77,026.72 is: 115,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,015.04 : 395,990.40 = 77,026.72 : x
  2. Step 2: Convert to fraction form
    264,015.04/395,990.40 = 77,026.72/x
  3. Step 3: Cross multiply
    264,015.04x = 395,990.40 × 77,026.72
  4. Step 4: Simplify right side
    264,015.04x = 30,501,841,663.49
  5. Step 5: Solve for x
    x = 30,501,841,663.49/264,015.04
  6. Step 6: Final answer
    x = 115,530.70

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1.5x scale

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.