Home / 292,278.16-438,153.96-105,158

Finding the Fourth Proportional to 292,278.16, 438,153.96 and 105,158

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Solution

The fourth proportional to 292,278.16, 438,153.96 and 105,158 is: 157,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,278.16 : 438,153.96 = 105,158 : x
  2. Step 2: Convert to fraction form
    292,278.16/438,153.96 = 105,158/x
  3. Step 3: Cross multiply
    292,278.16x = 438,153.96 × 105,158
  4. Step 4: Simplify right side
    292,278.16x = 46,075,394,125.68
  5. Step 5: Solve for x
    x = 46,075,394,125.68/292,278.16
  6. Step 6: Final answer
    x = 157,642.28

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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.