Home / 380,106.38-524,551.48-210,356.30

Finding the Fourth Proportional to 380,106.38, 524,551.48 and 210,356.30

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Solution

The fourth proportional to 380,106.38, 524,551.48 and 210,356.30 is: 290,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,106.38 : 524,551.48 = 210,356.30 : x
  2. Step 2: Convert to fraction form
    380,106.38/524,551.48 = 210,356.30/x
  3. Step 3: Cross multiply
    380,106.38x = 524,551.48 × 210,356.30
  4. Step 4: Simplify right side
    380,106.38x = 110,342,708,492.32
  5. Step 5: Solve for x
    x = 110,342,708,492.32/380,106.38
  6. Step 6: Final answer
    x = 290,294.28

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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.