Home / 426,867.87-640,632.30-160,870.35

Finding the Fourth Proportional to 426,867.87, 640,632.30 and 160,870.35

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Solution

The fourth proportional to 426,867.87, 640,632.30 and 160,870.35 is: 241,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,867.87 : 640,632.30 = 160,870.35 : x
  2. Step 2: Convert to fraction form
    426,867.87/640,632.30 = 160,870.35/x
  3. Step 3: Cross multiply
    426,867.87x = 640,632.30 × 160,870.35
  4. Step 4: Simplify right side
    426,867.87x = 103,058,742,322.31
  5. Step 5: Solve for x
    x = 103,058,742,322.31/426,867.87
  6. Step 6: Final answer
    x = 241,430.08

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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.