Home / 282,833.55-390,316.98-153,779.40

Finding the Fourth Proportional to 282,833.55, 390,316.98 and 153,779.40

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Solution

The fourth proportional to 282,833.55, 390,316.98 and 153,779.40 is: 212,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,833.55 : 390,316.98 = 153,779.40 : x
  2. Step 2: Convert to fraction form
    282,833.55/390,316.98 = 153,779.40/x
  3. Step 3: Cross multiply
    282,833.55x = 390,316.98 × 153,779.40
  4. Step 4: Simplify right side
    282,833.55x = 60,022,710,994.21
  5. Step 5: Solve for x
    x = 60,022,710,994.21/282,833.55
  6. Step 6: Final answer
    x = 212,219.20

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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.