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Finding the Fourth Proportional to 302,047.15, 453,060.47 and 77,409.79

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Solution

The fourth proportional to 302,047.15, 453,060.47 and 77,409.79 is: 116,112.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,047.15 : 453,060.47 = 77,409.79 : x
  2. Step 2: Convert to fraction form
    302,047.15/453,060.47 = 77,409.79/x
  3. Step 3: Cross multiply
    302,047.15x = 453,060.47 × 77,409.79
  4. Step 4: Simplify right side
    302,047.15x = 35,071,316,779.13
  5. Step 5: Solve for x
    x = 35,071,316,779.13/302,047.15
  6. Step 6: Final answer
    x = 116,112.06

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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.