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Finding the Fourth Proportional to 310,051.26, 427,870.98 and 181,077.66

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Solution

The fourth proportional to 310,051.26, 427,870.98 and 181,077.66 is: 249,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,051.26 : 427,870.98 = 181,077.66 : x
  2. Step 2: Convert to fraction form
    310,051.26/427,870.98 = 181,077.66/x
  3. Step 3: Cross multiply
    310,051.26x = 427,870.98 × 181,077.66
  4. Step 4: Simplify right side
    310,051.26x = 77,477,875,840.31
  5. Step 5: Solve for x
    x = 77,477,875,840.31/310,051.26
  6. Step 6: Final answer
    x = 249,887.31

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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.