Home / 290,041.83-434,547.77-121,190.45

Finding the Fourth Proportional to 290,041.83, 434,547.77 and 121,190.45

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Solution

The fourth proportional to 290,041.83, 434,547.77 and 121,190.45 is: 181,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,041.83 : 434,547.77 = 121,190.45 : x
  2. Step 2: Convert to fraction form
    290,041.83/434,547.77 = 121,190.45/x
  3. Step 3: Cross multiply
    290,041.83x = 434,547.77 × 121,190.45
  4. Step 4: Simplify right side
    290,041.83x = 52,663,037,014.11
  5. Step 5: Solve for x
    x = 52,663,037,014.11/290,041.83
  6. Step 6: Final answer
    x = 181,570.49

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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.