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Finding the Fourth Proportional to 426,970.83, 589,250.26 and 235,980.12

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Solution

The fourth proportional to 426,970.83, 589,250.26 and 235,980.12 is: 325,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,970.83 : 589,250.26 = 235,980.12 : x
  2. Step 2: Convert to fraction form
    426,970.83/589,250.26 = 235,980.12/x
  3. Step 3: Cross multiply
    426,970.83x = 589,250.26 × 235,980.12
  4. Step 4: Simplify right side
    426,970.83x = 139,051,347,064.83
  5. Step 5: Solve for x
    x = 139,051,347,064.83/426,970.83
  6. Step 6: Final answer
    x = 325,669.43

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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.