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Finding the Fourth Proportional to 400,019.70, 600,030.14 and 163,362.40

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Solution

The fourth proportional to 400,019.70, 600,030.14 and 163,362.40 is: 245,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,019.70 : 600,030.14 = 163,362.40 : x
  2. Step 2: Convert to fraction form
    400,019.70/600,030.14 = 163,362.40/x
  3. Step 3: Cross multiply
    400,019.70x = 600,030.14 × 163,362.40
  4. Step 4: Simplify right side
    400,019.70x = 98,022,363,742.74
  5. Step 5: Solve for x
    x = 98,022,363,742.74/400,019.70
  6. Step 6: Final answer
    x = 245,043.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.