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Finding the Fourth Proportional to 207,303.51, 310,957 and 57,555.48

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Solution

The fourth proportional to 207,303.51, 310,957 and 57,555.48 is: 86,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,303.51 : 310,957 = 57,555.48 : x
  2. Step 2: Convert to fraction form
    207,303.51/310,957 = 57,555.48/x
  3. Step 3: Cross multiply
    207,303.51x = 310,957 × 57,555.48
  4. Step 4: Simplify right side
    207,303.51x = 17,897,279,394.36
  5. Step 5: Solve for x
    x = 17,897,279,394.36/207,303.51
  6. Step 6: Final answer
    x = 86,333.70

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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.