Home / 279,328.69-385,482.30-158,475.07

Finding the Fourth Proportional to 279,328.69, 385,482.30 and 158,475.07

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Solution

The fourth proportional to 279,328.69, 385,482.30 and 158,475.07 is: 218,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,328.69 : 385,482.30 = 158,475.07 : x
  2. Step 2: Convert to fraction form
    279,328.69/385,482.30 = 158,475.07/x
  3. Step 3: Cross multiply
    279,328.69x = 385,482.30 × 158,475.07
  4. Step 4: Simplify right side
    279,328.69x = 61,089,334,476.26
  5. Step 5: Solve for x
    x = 61,089,334,476.26/279,328.69
  6. Step 6: Final answer
    x = 218,700.54

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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.