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Finding the Fourth Proportional to 292,739.84, 403,980.90 and 158,603.84

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Solution

The fourth proportional to 292,739.84, 403,980.90 and 158,603.84 is: 218,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,739.84 : 403,980.90 = 158,603.84 : x
  2. Step 2: Convert to fraction form
    292,739.84/403,980.90 = 158,603.84/x
  3. Step 3: Cross multiply
    292,739.84x = 403,980.90 × 158,603.84
  4. Step 4: Simplify right side
    292,739.84x = 64,072,922,026.66
  5. Step 5: Solve for x
    x = 64,072,922,026.66/292,739.84
  6. Step 6: Final answer
    x = 218,873.26

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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.