Home / 210,578.48-290,612.36-118,720.44

Finding the Fourth Proportional to 210,578.48, 290,612.36 and 118,720.44

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Solution

The fourth proportional to 210,578.48, 290,612.36 and 118,720.44 is: 163,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,578.48 : 290,612.36 = 118,720.44 : x
  2. Step 2: Convert to fraction form
    210,578.48/290,612.36 = 118,720.44/x
  3. Step 3: Cross multiply
    210,578.48x = 290,612.36 × 118,720.44
  4. Step 4: Simplify right side
    210,578.48x = 34,501,627,248.64
  5. Step 5: Solve for x
    x = 34,501,627,248.64/210,578.48
  6. Step 6: Final answer
    x = 163,842.13

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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.