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Finding the Fourth Proportional to 290,349.32, 400,681.50 and 163,025.60

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Solution

The fourth proportional to 290,349.32, 400,681.50 and 163,025.60 is: 224,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,349.32 : 400,681.50 = 163,025.60 : x
  2. Step 2: Convert to fraction form
    290,349.32/400,681.50 = 163,025.60/x
  3. Step 3: Cross multiply
    290,349.32x = 400,681.50 × 163,025.60
  4. Step 4: Simplify right side
    290,349.32x = 65,321,341,946.40
  5. Step 5: Solve for x
    x = 65,321,341,946.40/290,349.32
  6. Step 6: Final answer
    x = 224,975.01

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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.