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Finding the Fourth Proportional to 310,023.69, 427,804.79 and 180,973.36

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Solution

The fourth proportional to 310,023.69, 427,804.79 and 180,973.36 is: 249,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,023.69 : 427,804.79 = 180,973.36 : x
  2. Step 2: Convert to fraction form
    310,023.69/427,804.79 = 180,973.36/x
  3. Step 3: Cross multiply
    310,023.69x = 427,804.79 × 180,973.36
  4. Step 4: Simplify right side
    310,023.69x = 77,421,270,270.39
  5. Step 5: Solve for x
    x = 77,421,270,270.39/310,023.69
  6. Step 6: Final answer
    x = 249,726.95

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1.5x scale

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.