Home / 290,637.38-401,275.30-259,915.16

Finding the Fourth Proportional to 290,637.38, 401,275.30 and 259,915.16

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Solution

The fourth proportional to 290,637.38, 401,275.30 and 259,915.16 is: 358,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,637.38 : 401,275.30 = 259,915.16 : x
  2. Step 2: Convert to fraction form
    290,637.38/401,275.30 = 259,915.16/x
  3. Step 3: Cross multiply
    290,637.38x = 401,275.30 × 259,915.16
  4. Step 4: Simplify right side
    290,637.38x = 104,297,533,803.55
  5. Step 5: Solve for x
    x = 104,297,533,803.55/290,637.38
  6. Step 6: Final answer
    x = 358,857.95

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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.