Home / 360,807.04-498,013.80-209,933.20

Finding the Fourth Proportional to 360,807.04, 498,013.80 and 209,933.20

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Solution

The fourth proportional to 360,807.04, 498,013.80 and 209,933.20 is: 289,766.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,807.04 : 498,013.80 = 209,933.20 : x
  2. Step 2: Convert to fraction form
    360,807.04/498,013.80 = 209,933.20/x
  3. Step 3: Cross multiply
    360,807.04x = 498,013.80 × 209,933.20
  4. Step 4: Simplify right side
    360,807.04x = 104,549,630,678.16
  5. Step 5: Solve for x
    x = 104,549,630,678.16/360,807.04
  6. Step 6: Final answer
    x = 289,766.05

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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.