Home / 309,485.95-464,075.80-109,776.40

Finding the Fourth Proportional to 309,485.95, 464,075.80 and 109,776.40

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Solution

The fourth proportional to 309,485.95, 464,075.80 and 109,776.40 is: 164,610.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,485.95 : 464,075.80 = 109,776.40 : x
  2. Step 2: Convert to fraction form
    309,485.95/464,075.80 = 109,776.40/x
  3. Step 3: Cross multiply
    309,485.95x = 464,075.80 × 109,776.40
  4. Step 4: Simplify right side
    309,485.95x = 50,944,569,216.49
  5. Step 5: Solve for x
    x = 50,944,569,216.49/309,485.95
  6. Step 6: Final answer
    x = 164,610.28

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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.