Home / 314,235.04-433,647.12-290,423.20

Finding the Fourth Proportional to 314,235.04, 433,647.12 and 290,423.20

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Solution

The fourth proportional to 314,235.04, 433,647.12 and 290,423.20 is: 400,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,235.04 : 433,647.12 = 290,423.20 : x
  2. Step 2: Convert to fraction form
    314,235.04/433,647.12 = 290,423.20/x
  3. Step 3: Cross multiply
    314,235.04x = 433,647.12 × 290,423.20
  4. Step 4: Simplify right side
    314,235.04x = 125,941,184,261.18
  5. Step 5: Solve for x
    x = 125,941,184,261.18/314,235.04
  6. Step 6: Final answer
    x = 400,786.57

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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.