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Finding the Fourth Proportional to 387,796.48, 535,460.16 and 302,764.48

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Solution

The fourth proportional to 387,796.48, 535,460.16 and 302,764.48 is: 418,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,796.48 : 535,460.16 = 302,764.48 : x
  2. Step 2: Convert to fraction form
    387,796.48/535,460.16 = 302,764.48/x
  3. Step 3: Cross multiply
    387,796.48x = 535,460.16 × 302,764.48
  4. Step 4: Simplify right side
    387,796.48x = 162,118,316,903.12
  5. Step 5: Solve for x
    x = 162,118,316,903.12/387,796.48
  6. Step 6: Final answer
    x = 418,050.00

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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.